CVE-2026-104035
No fix known EPSS <1%CVSS 5.5
A flaw was found in SSSD. An issue in the Kerberos Credential Manager (KCM) responder allows a local user to cause a Denial of Service (DoS) by maintaining a persistent connection and repeatedly storing and destroying credentials. Because the service fails to release cached objects from memory when credentials are removed, memory consumption grows continuously, ultimately exhausting available memory and rendering the service unresponsive.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | sssd | no fix |
| Debian 13 | sssd | no fix |
| Ubuntu 22.04 LTS | sssd | no fix |
| Ubuntu 24.04 LTS | sssd | no fix |
| Ubuntu 26.04 LTS | sssd | no fix |
| Ubuntu 26.10 | sssd | no fix |
| Ubuntu Pro 16.04 LTS | sssd | no fix |
| Ubuntu Pro 18.04 LTS | sssd | no fix |
| Ubuntu Pro 20.04 LTS | sssd | no fix |